[CentOS] info wanted about meaning of boot messages ...

Hello,

I've got CentOS 6.8 x64, updated today to the latest by 'yum update'
this installed a new kernel: 2.6.32-642.4.2.el6.x86_64

in /var/log/boot.log I found these 3 lines ...

No kdump initial ramdisk found.                            [WARNING]
Rebuilding /boot/initrd-2.6.32-642.4.2.el6.x86_64kdump.img
cp: cannot stat `/lib/firmware/i915/bxt_dmc_ver1.bin': No such file or 
directory

the first two are logic to me, but the 3rd line, did there something 
fail at the update?

Thanks,
Walter